Chemicals, plastics and rubber industries

Scaled particle theory revisited: New conditions and improved predictions of the properties of the hard sphere fluid

Article Abstract:

The successful scaled particle theory (SPT) of hard particle fluids originally developed by Reiss, Frisch, and Lebowitz are revisited. The success of SPT6 and SPT7 for the pure component hard sphere fluid suggests that a similar extension of SPT for multicomponent hard sphere mixtures can be made.

Issues concerning the reflection of the three-dimensional arrangement of P2O(sub 7)(super 4-) units in the TiP2O7 structure in various one- and two-dimensional 31P MAS NMR experiments are discussed. The 31P MAS NMR properties of the isostructural phases TiP2O7 and SiP2O7 are compared.